Oral Histology Exam: Trivia Quiz!

20 Questions | Total Attempts: 1487

SettingsSettingsSettings
Oral Histology Exam: Trivia Quiz! - Quiz

.


Questions and Answers
  • 1. 
    In which part of the oral cavity mucous membrane is the thinnest?
    • A. 

      Soft palate

    • B. 

      Labial mucosa

    • C. 

      Floor of mouth

    • D. 

      Buccal mucosa

  • 2. 
    The tactile threshold of the natural teeth during axial loading is?
    • A. 

      0.001-0.01N

    • B. 

      0.01-0.10N

    • C. 

      0.10-0.5N

    • D. 

      1.2N

  • 3. 
    The average diameter of coronal dentinal tubules near pulp is?
    • A. 

      0.2-0.5 micron

    • B. 

      2-3 micron

    • C. 

      0.2-0.3 micron

    • D. 

      4-7 micron

  • 4. 
    Membrana performativa is seen in:
    • A. 

      Bell stage

    • B. 

      Cap satge

    • C. 

      Bud stage

    • D. 

      Advanced bell stage

  • 5. 
    The proliferation of the basal layer starts in which developmental stages?
    • A. 

      Bud stage

    • B. 

      Cap stage

    • C. 

      Bell stage

    • D. 

      Advanced bell stage

  • 6. 
    Organization center that orchestrates surface morphogenesis is?
    • A. 

      Enamel knot

    • B. 

      Enamel chord

    • C. 

      Enamel niche

    • D. 

      Enamel mesh

  • 7. 
    Blood vessels first appear in the papillae in:
    • A. 

      Bud stage

    • B. 

      Cap stage

    • C. 

      Bell stage

    • D. 

      Advanced bell stage

  • 8. 
    Collagen found in pulp?
    • A. 

      Type 1 and 3

    • B. 

      Type 1 and 2

    • C. 

      Type 1 and 4

    • D. 

      Type 1 only

  • 9. 
    Anchoring collagen?
    • A. 

      6

    • B. 

      7

    • C. 

      17

    • D. 

      All

  • 10. 
    Sex determination is possible with which of the following protein?
    • A. 

      Osteopontin

    • B. 

      Tuftelin

    • C. 

      Dentin sialoprotein

    • D. 

      Amelogenin

  • 11. 
    What is the thickness of the layer of prismless enamel found in primary teeth?
    • A. 

      25 micron

    • B. 

      50 micron

    • C. 

      75 micron

    • D. 

      100 micron

  • 12. 
    Which of the following is indicative of ageing?
    • A. 

      Expression of dead tracts

    • B. 

      Widening of predentin

    • C. 

      Increase in peritubular diameter

    • D. 

      Increase in peritubular dentin

  • 13. 
    Atypical dentin is formed due to defect in
    • A. 

      Apposition

    • B. 

      Initiation

    • C. 

      Histodifferentiation

    • D. 

      Morphodifferentiation

  • 14. 
    Matrix vesicles are derived from?
    • A. 

      Elastin fibres

    • B. 

      Collagen

    • C. 

      Osteoblast

    • D. 

      Inflammatory cells

  • 15. 
    At what age is a child expected to have 12 erupted primary teeth and 12 erupted permanent teeth.
    • A. 

      4½ years

    • B. 

      6½ years

    • C. 

      8½ years

    • D. 

      12½ years

  • 16. 
    Blood vessels and nerves are generally scarce in which component of TMJ?
    • A. 

      Anterior portion of disc

    • B. 

      Articular disc

    • C. 

      Posterior portion of disc

    • D. 

      Central portion of disc

  • 17. 
    At what stage of development of a tooth does dentinogenesis imperfecta occur:
    • A. 

      Initiation

    • B. 

      Proliferation

    • C. 

      Histodifferentiation

    • D. 

      Morphodifferentiation

  • 18. 
    Chronological hypoplasia is 
    • A. 

      Hypoplasia of local origin

    • B. 

      Hypoplasia of systemic origin

    • C. 

      Hypoplasia of hereditary origin

    • D. 

      None of the above

  • 19. 
    What percentage of dentin contains collagen?
    • A. 

      5%

    • B. 

      19%

    • C. 

      40%

    • D. 

      68%

  • 20. 
    Non-acidic, nonionic protein which helps in enamel mineralization.
    • A. 

      Tuftelin

    • B. 

      Sheathlin

    • C. 

      Enamelin

    • D. 

      Amelogenin